遇到高精度怎么办？用几十行的C/CPP!？显然不是最佳选择。

此时用JAVA就能轻松解决：

import java.math.BigDecimal;import java.util.Scanner;import java.math.BigInteger; public class Main{    public static void main(String args[]){        BigInteger a[] = new BigInteger[110];        BigInteger b[] = new BigInteger[110];        Scanner cin = new Scanner(System.in);        int n;        n = cin.nextInt();        for (int i=1;i<=n;i++)        {            a[i] = cin.nextBigInteger();            b[i] = cin.nextBigInteger();            System.out.println(a[i].add(b[i]));            System.out.println(a[i].subtract(b[i]);        }    }}